CN2489453Y - Multiple cam universal change-over switch - Google Patents
Multiple cam universal change-over switch Download PDFInfo
- Publication number
- CN2489453Y CN2489453Y CN 01231381 CN01231381U CN2489453Y CN 2489453 Y CN2489453 Y CN 2489453Y CN 01231381 CN01231381 CN 01231381 CN 01231381 U CN01231381 U CN 01231381U CN 2489453 Y CN2489453 Y CN 2489453Y
- Authority
- CN
- China
- Prior art keywords
- cam
- rotating shaft
- change over
- pushing mechanism
- contact seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The utility model relates to a multiple cam universal change-over switch, which consists of a disc, a rotating shaft, a ratchet wheel, a plurality of cam pushing mechanisms and a plurality of insulation conversion contact terminal seats. The single layer insulation conversion contact terminal seat is arranged inside a plurality of connecting pillars and two brackets which are connected to the pressure spring and the contacting bridge respectively. A single section cam pushing mechanism consists of an upper cam, a middle cam and a lower cam which are overlaid, matching with the two brackets in the single layer insulation conversion contact terminal seat. The operation of the bracket is more stable, and contact becomes much more reliably, the working performance of switch conversion is improved, and the occurring of the faulty behavior in switch conversion is effectively prevented.
Description
(1). technical field
The utility model is a kind of change over switch that is applicable to conversion electric control circuit in the AC and DC circuit.
(2). background technology
Electric switching mainly is applicable to and exchanges 50Hz, voltage is to 500V, direct voltage is changed electric control circuit to the circuit of 440V, as solenoid, electrical measuring instrument and servomotor etc., also can directly control the startup of three phase induction motor, but inverse conversion and speed change, it is mainly by knob, disk, rotating shaft, rotating mechanism, the cam pushing mechanism, insulation change over contact seat is formed, rotating mechanism is mainly by the ratchet that is with rotating shaft, slide block, formations such as spring, spring comprises torsion spring and stage clip, torsion spring is arranged on the ratchet, ratchet sleeve is connected in the rotating shaft, by the knob rotating shaft, cooperatively interacting of slide block in being arranged on disk and ratchet, rotating shaft is rotated with certain angle and certain direction, and drive change over contact seat cam ring pushing mechanism, the cam pushing mechanism is made of two cams that are enclosed within the rotating shaft, promotes or discharges being connected with spring and touching the support of bridge separately through two cams, to reach the purpose of conversion electric control circuit.Because the cam pushing mechanism of this kind change over switch is promoted by two cams, the operation of support is stable inadequately, and it is unreliable to contact, and causes change over switch misoperation to occur easily.
(3). technical scheme
The purpose of this utility model is to provide a kind of stable, many cams universal seclector that contact is reliable, simple in structure.
The utility model is achieved in that a kind of many cams universal seclector, mainly by disk, rotating shaft, rotating mechanism, some joint cam pushing mechanisms, several layers insulation change over contact seat and base are formed, rotating mechanism mainly is made of the banking stop that is positioned at disk and the ratchet rotating shaft socket and be socketed in the rotating shaft, single-unit cam pushing mechanism is made of the cam with the rotating shaft socket that is positioned at corresponding individual layer insulation change over contact seat, be provided with some binding posts in the individual layer insulation change over contact seat and respectively with stage clip with touch two supports that bridging connects, the rotating shaft cross-under is in disk and insulation change over contact seat, and described single-unit cam pushing mechanism is by in the work that matches with two supports in the corresponding individual layer insulation change over contact seat, in, three cams of following mutual superposition constitute.
The overhead cam structure of described single-unit cam pushing mechanism can be identical with following cam structure.
The utility model is made of three cams owing to the cam pushing mechanism, during support cooperating in cam and the corresponding insulation change over contact seat, make the operation of support more stable, contact more reliable, improve the service behaviour of change over switch, effectively prevented the generation of change over switch misoperation.
(4). description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model;
Fig. 2 is insulation change over contact seat of the present utility model and top associated components schematic diagram thereof;
Fig. 3 is the front view of square rotating shaft of the present utility model;
Fig. 4 a is that the upper and lower cam of single-unit cam pushing mechanism is faced sketch;
Fig. 4 b is that the cam of single-unit cam pushing mechanism is faced sketch;
Fig. 5 a is that another embodiment of upper and lower cam of single-unit cam pushing mechanism faces sketch;
Fig. 5 b is that another embodiment of cam of single-unit cam pushing mechanism faces sketch;
Fig. 6 a is that the another embodiment of upper and lower cam of single-unit cam pushing mechanism faces sketch;
Fig. 6 b is that the another embodiment of cam of single-unit cam pushing mechanism faces sketch;
Fig. 7 one Figure 12 faces sketch for more embodiment of cam;
Figure 13 is the indexing tabulation of the utility model change over switch.
(5). embodiment
With reference to figure 1, Fig. 2, many cams universal seclector structure is mainly by rotating shaft 1, disk 3, rotating mechanism, some joint cam pushing mechanisms, several layers insulation change over contact seat 4 and base 2 are formed, rotating mechanism mainly disk 3 constitutes with ratchet rotating shaft 1 socket and the banking stop that is socketed in the rotating shaft 1 by being positioned at, the interior correspondence of cavities is provided with single-unit cam pushing mechanism in the individual layer insulation change over contact seat 4, individual layer contact base 4 is provided with respectively and spring 5,6 and touch bridge 7,8 supports 9 that connect, 10 and some binding posts 11, rotating shaft 1 cross-under is in disk 3 and several layers insulation change over contact seat, described single-unit cam pushing mechanism be by with corresponding individual layer insulation change over contact seat in two supports 9,10 match work on, in, three cams 12 of following mutual superposition, 13,14 constitute, three cams 12,13,14 are socketed in the rotating shaft 1, so that support 9,10 operation is more stable, contacts more reliable.Wherein, overhead cam 12 structures are identical with following cam 14 structures, made things convenient for making.Actual converted angle according to change over switch, the cam radian and the compound mode of three cams in the single-unit cam pushing mechanism can have various ways, Fig. 4 one Fig. 6 has provided at three-layer insulated change over contact seat 4, the identical upper and lower cam 15,19,23 in the upper, middle and lower-ranking contact base and version and the cam radian and the compound mode of cam 17,21,25.In other words, the cam pushing mechanism that two identical upper and lower cams 15 and cam 17 mutual superposition constitute is positioned at the upper layer of contact seat, the cam pushing mechanism that two identical upper and lower cams 19 and cam 21 mutual superposition constitute is positioned at the middle level contact base, and the cam pushing mechanism that two identical upper and lower cams 23 and cam 17 mutual superposition constitute is positioned at the lower layer of contact seat.Be to save material, the upper and lower surface of cam 15,17,19,21,23,25 surrounds into groove by seamed edge respectively, and wherein the zigzag axis hole 16,18,20,22,24,26 that has respectively of portion can make things convenient for penetrating and locating of rotating shaft 1.
The operating angle of many cams universal seclector is 30 °, 45 °, 90 ° three kinds, and its mode of operation and actuator combination are divided into the various situations that Figure 13 tabulates.When switch rotated, three cams of each joint rotated by square rotating shaft 1 string together synchronously.The open and-shut mode of a support moving contact in the upper and lower cam 15 that shape is identical, the position is identical or 19 or 23 common this layer of the control contact base, the radian of every layer of contact base cam ring is based on the required indexing of switch itself and selects.If certain switch contact system is a joint, two pairs of double break contacts are arranged, be numbered 1/2,3/4 respectively, suppose that it needs mode of operation be location type D, i.e. 1/2,3/4 disconnects during 45 ° of 45 °-0 °-right 45 ° (seeing chart 13) in a left side, an and left side, 1/2 closure in the time of 0 °, 3/4 disconnects; 1/2 closure in the time of right 45 °, 3/4 closure.At this moment, 1/2 contact is that 90 ° cam is controlled with regard to selecting radian value, and 3/4 contact is that 45 ° cam is controlled with regard to selecting radian value.
When rotating shaft 1 was rotated with certain angle and certain direction, it drove three cam rotation in every layer of change over contact seat, utilized the circumference wheel face or the concave surface promotion of cam or discharged support, to reach the purpose of conversion electric control circuit.For this reason, cam is provided with the cam circle side face and the concave surface of certain radian, with the support cooperating.
As shown in Figure 3, can be provided with banking stop that is enclosed within the rotating shaft 1 and the compressing piece that is crimped on the banking stop in the breach 15 in the rotating shaft 1, carry out spacing with the rotation of countershaft.Fig. 7 one Figure 12 has provided the embodiment of more cams 27,28,29,30,31,32, and its indexing respective combination according to change over switch becomes single-unit cam pushing mechanism of the present utility model.
Claims (3)
1. cam universal seclector more than a kind, mainly by disk, rotating shaft, rotating mechanism, some joint cam pushing mechanisms, several layers insulation change over contact seat and base are formed, rotating mechanism mainly is made of the banking stop that is positioned at disk and the ratchet rotating shaft socket and be socketed in the rotating shaft, single-unit cam pushing mechanism is made of the cam with the rotating shaft socket that is positioned at corresponding individual layer insulation change over contact seat, be provided with some binding posts in the individual layer insulation change over contact seat and respectively with stage clip with touch two supports that bridging connects, the rotating shaft cross-under is characterized in that in disk and insulation change over contact seat: described single-unit cam pushing mechanism is by in the work that matches with two supports in the corresponding individual layer insulation change over contact seat, in, three cams of following mutual superposition constitute.
2. many cams universal seclector as claimed in claim 1 is characterized in that: the overhead cam structure of described single-unit cam pushing mechanism is identical with following cam structure.
3. many cams universal seclector as claimed in claim 1 or 2 is characterized in that: the cam middle part in the described cam pushing mechanism has the zigzag axis hole, and cam is provided with cam circle side face and the concave surface with certain radian with the support cooperating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01231381 CN2489453Y (en) | 2001-07-13 | 2001-07-13 | Multiple cam universal change-over switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01231381 CN2489453Y (en) | 2001-07-13 | 2001-07-13 | Multiple cam universal change-over switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2489453Y true CN2489453Y (en) | 2002-05-01 |
Family
ID=33645649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01231381 Expired - Lifetime CN2489453Y (en) | 2001-07-13 | 2001-07-13 | Multiple cam universal change-over switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2489453Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254719A (en) * | 2011-06-22 | 2011-11-23 | 王吴光 | Gear selection switch for electric appliance |
| CN109545603A (en) * | 2019-01-05 | 2019-03-29 | 叶永胜 | A kind of waterproof rotary switch of terminal buckle-type |
-
2001
- 2001-07-13 CN CN 01231381 patent/CN2489453Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254719A (en) * | 2011-06-22 | 2011-11-23 | 王吴光 | Gear selection switch for electric appliance |
| CN102254719B (en) * | 2011-06-22 | 2014-03-12 | 王吴光 | Gear selection switch for electric appliance |
| CN109545603A (en) * | 2019-01-05 | 2019-03-29 | 叶永胜 | A kind of waterproof rotary switch of terminal buckle-type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110713 Granted publication date: 20020501 |